Woolly apple aphid
origin and has been distributed to other parts of the world mainly via infested apple rootstocks. It can occasionally also be found in pear, quince and [...] a few other woody Rosaceae. Damage symptoms Galls are often produced on infested wood. These galls may seriously disfigure young trees and nursery stock [...] situation in America, South Africa, and Australia, woolly aphid does not infest roots in Europe (except rarely if they occur above the ground) or the s